144 lines
4.2 KiB
C++
144 lines
4.2 KiB
C++
#include "wled.h"
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/*
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* Methods to handle saving and loading presets to/from the filesystem
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*/
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#ifdef ARDUINO_ARCH_ESP32
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static char *tmpRAMbuffer = nullptr;
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#endif
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static volatile byte presetToApply = 0;
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static volatile byte callModeToApply = 0;
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static volatile bool checkPlaylist = false;
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bool applyPreset(byte index, byte callMode, bool fromJson)
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{
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presetToApply = index;
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callModeToApply = callMode;
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checkPlaylist = fromJson;
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return true;
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}
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void handlePresets()
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{
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if (presetToApply == 0 || fileDoc) return; //JSON buffer allocated (apply preset in next cycle) or no preset waiting
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JsonObject fdo;
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const char *filename = presetToApply < 255 ? "/presets.json" : "/tmp.json";
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// allocate buffer
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DEBUG_PRINTLN(F("Apply preset JSON buffer requested."));
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if (!requestJSONBufferLock(9)) return; // will also assign fileDoc
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#ifdef ARDUINO_ARCH_ESP32
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if (presetToApply==255 && tmpRAMbuffer!=nullptr) {
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deserializeJson(*fileDoc,tmpRAMbuffer);
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errorFlag = ERR_NONE;
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} else
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#endif
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{
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errorFlag = readObjectFromFileUsingId(filename, presetToApply, fileDoc) ? ERR_NONE : ERR_FS_PLOAD;
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}
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fdo = fileDoc->as<JsonObject>();
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//HTTP API commands
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const char* httpwin = fdo["win"];
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if (httpwin) {
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String apireq = "win&";
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apireq += httpwin;
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handleSet(nullptr, apireq, false);
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} else {
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fdo.remove("ps"); //remove load request for presets to prevent recursive crash
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// if we applyPreset from JSON and preset contains "seg" we must unload playlist
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if (checkPlaylist && !fdo["seg"].isNull()) unloadPlaylist();
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deserializeState(fdo, CALL_MODE_NO_NOTIFY, presetToApply);
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}
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#if defined(ARDUINO_ARCH_ESP32)
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//Aircoookie recommended not to delete buffer
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if (presetToApply==255 && tmpRAMbuffer!=nullptr) {
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free(tmpRAMbuffer);
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tmpRAMbuffer = nullptr;
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}
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#endif
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releaseJSONBufferLock(); // will also clear fileDoc
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if (!errorFlag && presetToApply < 255) currentPreset = presetToApply;
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colorUpdated(callModeToApply);
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updateInterfaces(callModeToApply);
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presetToApply = 0; //clear request for preset
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callModeToApply = 0;
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checkPlaylist = false;
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}
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//called from handleSet(PS=) [network callback (fileDoc==nullptr), IR (irrational), deserializeState, UDP] and deserializeState() [network callback (filedoc!=nullptr)]
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void savePreset(byte index, bool persist, const char* pname, JsonObject saveobj)
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{
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if (index == 0 || (index > 250 && persist) || (index<255 && !persist)) return;
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JsonObject sObj = saveobj;
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bool bufferAllocated = false;
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const char *filename = persist ? "/presets.json" : "/tmp.json";
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if (!fileDoc) {
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// called from handleSet() HTTP API
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DEBUG_PRINTLN(F("Save preset JSON buffer requested."));
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if (!requestJSONBufferLock(10)) return;
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sObj = fileDoc->to<JsonObject>();
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bufferAllocated = true;
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}
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if (pname) sObj["n"] = pname;
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sObj.remove(F("psave"));
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sObj.remove(F("v"));
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if (!sObj["o"]) {
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DEBUGFS_PRINTLN(F("Serialize current state"));
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if (sObj["ib"].isNull() && sObj["sb"].isNull()) serializeState(sObj, true);
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else serializeState(sObj, true, sObj["ib"], sObj["sb"]);
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if (persist) currentPreset = index;
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}
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sObj.remove("o");
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sObj.remove("ib");
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sObj.remove("sb");
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sObj.remove(F("sc"));
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sObj.remove(F("error"));
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sObj.remove(F("time"));
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#if defined(ARDUINO_ARCH_ESP32)
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if (index==255) {
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if (tmpRAMbuffer!=nullptr) free(tmpRAMbuffer);
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size_t len = measureJson(*fileDoc) + 1;
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DEBUG_PRINTLN(len);
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// if possible use SPI RAM on ESP32
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#ifdef WLED_USE_PSRAM
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if (psramFound())
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tmpRAMbuffer = (char*) ps_malloc(len);
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else
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#endif
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tmpRAMbuffer = (char*) malloc(len);
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if (tmpRAMbuffer!=nullptr) {
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serializeJson(*fileDoc, tmpRAMbuffer, len);
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} else {
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writeObjectToFileUsingId(filename, index, fileDoc);
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}
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} else
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#endif
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writeObjectToFileUsingId(filename, index, fileDoc);
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if (persist) presetsModifiedTime = toki.second(); //unix time
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if (bufferAllocated) releaseJSONBufferLock();
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updateFSInfo();
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}
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void deletePreset(byte index) {
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StaticJsonDocument<24> empty;
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writeObjectToFileUsingId("/presets.json", index, &empty);
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presetsModifiedTime = toki.second(); //unix time
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updateFSInfo();
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} |